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Table of Contents
Great Circle Hypotheis
Magnetoclinic Hypothesis
Magnetic-Latitude Hypothesis
Compass Bearings Hypothesis
Suns' Azimuth Hypothesis
Expansion-Contraction Hypothesis
Always Advance Hypothesis
Never Go Back Hypothesis
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Analysis of Field Data for the 1988 Monarch
Butterfly Migration in Resaca and Calhoun, Georgia
 Table XIV b
Mean Vanishing bearing for Danaus plexippus Flying above the Radiation
Inversion (SE winds): Data used in Calculations
September 26 - October 2, 1988 observations of the Danaus plexippus
migration in Resaca and Calhoun, Georgia
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|
Date |
Tables |
Number of
Observations |
Field Data
Code Numbers |
Reasons for
Exclusion |
|
Sept. 26 |
I
|
- |
- |
NA |
27 |
II
|
- |
- |
NA |
28 |
III
|
28 (29) |
72 - 84, 85, 86 - 94, 96 - 101 |
No bearings |
29 |
IV
|
18 (19) |
134, 135, 136, 137 - 147, 149, 150, 154, 156, 157 |
No bearings |
30 |
V
|
10 |
194 - 203 |
NA |
Oct. 1 |
VI
|
- (1) |
243 |
No bearings |
2 |
VII
|
|
255 |
Wind above inversion has shifted
to N |
|
Totals |
7 |
56 |

Data for Calm
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Any observations hi-lighted in red were excluded from calculations for reasons
given in column 5. None were excluded for the NW wind condition.
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